| 영문 | feedback | 한글 | 되먹임 |
|---|---|---|---|
| 설명 | 입력과 출력을 갖춘 제어시스템에서 출력의 일부를 입력측으로 되돌려 입력으로 사용하는 일. 증폭기나 자동 제어 따위의 전기회로에 많이 사용한다. |
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| 영문 | alpha particles | 한글 | 알파입자 |
|---|---|---|---|
| 설명 | 원자에 정상보다 과다, 과소한 중성자나 양자를 가지고 있는 경우에 원자가 안정되기 위해서 붕괴가 생긴다. 이런 붕괴에는 다음과 같은 3가지 방법이 있다. 알파－붕괴는 알파입자를 방출하여 안정되는 법, 즉 원자번호는 2씩 감소하고 질량수는 4씩 감소한다. 알파입자란 알파붕괴에 의해서 생기는 헬륨의 핵과 같은 입자를 말한다. |
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| 영문 | alpha-fetoprotein | 한글 | 알파태아단백 |
|---|---|---|---|
| 설명 | 태아의 간조직이나 소화기관에서 만들어지는 단백질. 태아기나 임산부에서 정상적으로 존재한다. 그러나 간암세포나 생식세포에 관련된 종양에서도 만들어져 이런 질병이 존재할 때에는 임산부나 태아가 아니더라도 조직이나 혈액에 나타나게 된다. 임상적으로는 간암이나 생식세포 종양의 발견과 치료효과 판정에 이용되고, 또 임신 16~18주에 산모의 혈액에서 이단백질의 양을 측정하여 태아의 비정상적인 발달을 발견할 수 있다. |
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| alpha-GLUC | alpha-glucosidase |
|---|---|
| AOA | American Osteopathic Association; Administration on Aging; Alpha Omega Alpha Honor Society; American... |
| PAL | pathology laboratory; peptidyl-alpha-hydroxyglycine alpha-amidating lysine phase alteration plane; p... |
| BFB | biological feedback; bronchial foreign body |
| DAF | decay-accelerating factor; delayed auditory feedback; drug-adulterated food |
| DAF | Delayed Auditory Feedback |
|---|---|
| TGF | Tubuloglomerular feedback |
| 3 alpha-diol | alpha-Androstan-3 alpha, 17 beta-diol |
| 1 alpha(OH)D3 | 1 alpha hydroxyvitamin D3 |
| 1 alpha,25(OH)2D3 | 1 alpha, 25 dihydroxyvitamin D3 |
| positive feedback | <physiology> The return of some of the output of a system as input so as to exert some control in the process. (18 Nov 1997) |
|---|---|
| negative feedback | This occurs where the products of a process can act at an earlier stage in the process to inhibit their own formation. The term was first used widely in conjunction with electrical amplifiers where negative feedback was applied to limit distortion of the signal by the amplification mechanism. Tends to stabilise the process. In contrast to positive feedback. (18 Nov 1997) |
| feedback | <physiology> The return of some of the output of a system as input so as to exert some control in the process. (18 Nov 1997) |
| feedback activation | The activation of an enzyme by an end product of a biochemical pathway in which that enzyme plays a part. For example, the activation of factors VIII and V by thrombin during blood clotting. (05 Mar 2000) |
| feedback control | The regulation of the activity of an enzyme by one of its products. (09 Oct 1997) |
| feedback inhibition | <biochemistry, physiology> The process of the end product of a particular metabolic reaction inhibiting an allosteric enzyme involved in that reaction as the reaction starts again, thus breaking the reaction cycle. (09 Oct 1997) |
| feedback regulation | <physiology> Control mechanism that uses the consequences of a process to regulate the rate at which the process occurs: if, for example: the products of a reaction inhibit the reaction from proceeding (or slow down the rate of the reaction), then there is negative feedback, something that is very common in metabolic pathways. Positive feedback is liable to lead to exponential increase and may be explosively dangerous in some cases. Other examples are the action of voltage dependent sodium channels in generating action potentials and the activation of blood clotting factors V and VIII by thrombin. Without damping, feedback can lead to resonance (hunting) and oscillation in the system. (18 Nov 1997) |
| feedback system | A complex of neuronal circuits whereby a part of the efferent path returns to the input to modulate its activity, thus acting as a governor on the system. See: feedback. (05 Mar 2000) |
| alpha, alpha-phosphotrehalase | <enzyme> Forms glucose plus glucose-6-phosphate Registry number: EC 3.2.1.93 Synonym: trehalose-6-phosphate hydrolase, phospho-alpha(1,1)glucosidase, trea gene product, trec gene product (26 Jun 1999) |
| alpha,alpha-trehalose phosphorylase | <enzyme> Chemical name: alpha-d-glucopyranosyl-alpha-d-glucopyranose orthophosphate glucosyltransferase Registry number: EC 2.4.1.64 Synonym: trehalose phosphorylase (26 Jun 1999) |
| alpha-dextrin endo-1,6-alpha-glucosidase | <enzyme> An enzyme with action similar to that of isoamylase; it cleaves 1,6-alpha-glucosidic linkages in pullalan, amylopectin, and glycogen, and in alpha-and beta-amylase limit-dextrins of amylopectin and glycogen. Compare: isoamylase. Synonym: limit dextrinase, pullulanase, R enzyme. (05 Mar 2000) |
| alpha-hydroxymethyl-alpha'-(N-acetylaminomethylene)succinic acid hydrolase | <enzyme> Involved in degradation of vitamin b6; forms acetic acid plus ammonia plus carbon dioxide plus alpha-hydroxymethyl-succinic monoaldehyde Registry number: EC 3.5.1.- Synonym: compound b hydrolase (26 Jun 1999) |
| cholesterol-5 alpha,6 alpha-epoxide hydrase | <enzyme> Aspect of epoxide hydrolase, EC 3.3.2.3 Pharmacological action: carcinogen Registry number: EC 3.3.2.- Synonym: cholesterol epoxide hydrase, cholesterol epoxide hydrolase (26 Jun 1999) |
| CMP-acetylneuraminate-alpha-N-acetylneuramide alpha-2,8-sialyltransferase | <enzyme> Forms ganglioside gd3 Registry number: EC 2.4.99.8 Synonym: cmp-n-acetylneuraminate-gm3 sialyltransferase, gm3-sialosyltransferase, gd3 synthase, gd3-synthase, cmp-n-acetylneuraminate-(n-acetylneuraminyl)-d-galactosyl-d-glucosylceramide sialyltransferase, sialyltransferase II, st II, g(m3) alpha-2,8-sialyltransferase, st8sia I, stii enzyme, stiii enzyme, gt3 synthase (26 Jun 1999) |
| CMP-N-acetylneuraminate-alpha-N-acetylgalactosaminide alpha-2,6-sialyltransferase | <enzyme> Enzyme from foetal calf liver; forms branched tetrasaccharide, neuac-alpha2-3gal-beta1-3(neuac-alpha2-6)galnac of fetuin Registry number: EC 2.4.99.3 Synonym: cmp-aag-sialyltransferase, st6galnaci, galnac 2,6-sialyltransferase (26 Jun 1999) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|